The lawsuit was filed by LG Motorsports, which is owned by Lou Gigliotti. Gigliotti founded LG Motorsports in 1998 and has been successfully racing cars for 20 years before then. His company now sells and races different cars, among them the Corvette. After GM expressed no interest in competing in the GT2 class of American Le Mans in 2008, Gigliotti ran his own. Corvette Racing made the switch to GT2 in 2009. Gigliotti alleges that GM convinced Michelin not to sell tires to LG Motorsports. Michelin dominates the racing tire market for the class, so without those tires it would have been almost impossible to be competitive.
The lawsuit also alleges that GM did not give LG Motorsports approval to race in the 24 Hours of Le Mans, which the FIA requires of private racing teams. This has left LG Motorsports with a race car that cannot be raced. So they are suing GM, Michelin, and Corvette Racing Program Manager Doug Fehan, in addition to demanding that Michelin sell them the tires they need to race.